Milling-machine.



R. D. AGKLEY & M. C. ABBEY.

MILLING MACHINE.

APPLICATION FILED AUG. 2, 1909.

Patented Mar. 11,1913.

yc@ 4 SHEETS-SHEET 1. 3 9651/ a l 75 l l. 5/

i m y y' 1|, n@ 2z] "ll'flq l R. D. AGKLEY & M. C. ABBEY.

MILLING MACHINE.

APPLlcATIoN FILED AUG. z, 1909.

1,055,964. Patented Mar. 11, 1913.

4 SHEETS-SHEET 2.

R. D. AGKLEY 6L M. C. ABBEY.

MILLING MACHINE.

APPLICATION FILED AUG. 2` 1909.

Patented Mar. 11,1913.

4 SHEETS-$13121 3.

R. D. ACKLBY da M. C. ABBEY.

NHLLING MACHINE.

APPLICATION FILED AUG.Z, 1909. 1,055,964 Patented Mar. 11, 1913;

4 SHEETS-SHEET 4.

UNITED sTATEs PATENT oEEioE.

ROLLIN D. .ACKLEY AND MARTIN C. ABBEY, 0F BATTLE CREEK, MICHIGAN.

MILLlNG-MACHINE.'

Specication of Letters Patent.

Patented )la 1'. 1] 1913.

To all whom t may concern.'

Be 1t known that we, RoLLiN D. AckLEr and MARTIN C. ABBEv,-cit1zens ofthe Umted States, residing at Battle Creek, Calhounl county, Michigan,have invented certain new `and useful Improvements in Milling-Ma chines,of which the following is a specification.

This invention rrelates to improvements in milling machines.

The main objects of the invention are: First, to provide an improvedmilling machine, which is especially adapted for use in the manufacturekof packing rings for pistons, `and the like, it being possible toproduce substantially perfect' rings thereby, without hand work. Second`to provide an improved milling machine by the aid of which split rings,such as piston packing rings. may be quickly7 and economically produced.Third, to provide an improved structure of the class described whic'hmay be easily and accurately adjusted for the manu facture of such ringsof different dlameters.

.Further objects` and objects relating to structural details, willdefinitely appear from the detailed description to follow.

Te accomplis-h the objects of our invention by the devices and meansdescribed in the following specification.

The structure described constitutes one effective embodiment of ourinvention. Other embodiments would be readily devised by those skilledin the art.

The invention is clearly defined and pointed out in the claims.

A structure lembodying an effective and `preferred embodiment of thefeatures of our invention is clearly illustra-ted in the accompanyingdrawing, forming a part of this specification, in which:

Figure 1 is a. front perspective view of a structure embodying thefeatures of our invention, a portion of the base being broken away. Fig.2 is a rear thereof, a portion of the base being broken away. Fig. 3 isan enlarge-d detail vertical section, taken on a line corresponding toline 3 3 of Fig. 1. Fig. t is anenlarged detail vertical section,ythrough the pneumatic clamp actuating cylinder and its cont-rol valve,taken on a line corresponding to line 4 1 of Fig. 3, the parts beingdiagrammatically arranged. Fig. 5 is a perspective view lar partsthroughout the perspective viewA pivot is preferably of the base portionof the work table, parline 5 5 of Fig. 3. Fig. 6 is a detail sectiontaken-on a line corresponding to line 6 6 of Fig. 3, showing the meansfor applying fric;` tion t0 the work table pivot.' Fig. 7 is 'a detailvertical section, taken on a line corresponding to line 7 7 of Fig. 2,showing the means for vertically adjusting the cut'- ters. Fig. 8 is ahorizontal section, taken on a. line corresponding to line 8 8 of Fig.3, showing details of the work table. Fig. 9 is a perspective view of apacking ring produced by our improved machine.

In the drawing. the sectional views are taken lookingin the direction ofthe little arrows at the endsI of the section lines, and similarnumerals of reference refer toX` simi several views..K i.

Referring to the drawing, the carriage bed 1 is supported on` a suitablepedestal 2. The bed 1 is provided with a w'ay 3 for the carriage 1,which is reciprocatingly mounted thereon. The carriage feed preferablyconsists of a segment 5 on the shaft 6, which is provided with a handlever 7, the carriage being provided with a rack 8 with which thesegment meshes. The work table is mounted on the carriage by means ofthe pivot 9. the pivot preferably being secured to the base portion 100f the table. The pivot 9 is located toward the front. edge of thetable. `The top portionll of the table is adjustably mounted upon thebase portion 10, the base portion 10 being preferably provided with away 12 for the top portiom--see Fig. 1. The top portionl 11 is adjustedthrough the screw 13, which is revolubly mounted on the base portion 10to engage a downwardly-projecting lug 14 on the top portion, a slot 15being provided' in the base portion for the lug-, see Fig. 3. By thisarrangement, the top portion may be adjusted relative to the table pivot9, thus increasing or diminishing its eccentricity, as described. Themovementof the table on its controlled by adjustable stops 16, avdownwardly-projccting stop 17 on thc table' being arranged to coactthere with, the carriage being slotted at 18 to receive this stop, seeFigs. 3 and 5. The stops 16 are preferably in the form of set screws, asillustrated. The table is swungon its 'pivot by means of the lever 19,see

Fig. l. .The spindles 2O of the cutters 21 are preferably arranged to beadjusted laterally and axially relative to each other. The spindles areprovided with suitable pulleys 2:2 and are carried by suitable bearingsupports, as Q3 and `24, which are adapted to be vertically adjusted,the adjustment being preferably accomplished by providing 'thesupportswith shanks 25 which are arranged in the clamp-like arms 26 onthe table bed, the

'shan ts being tapped to receive the adjusting .screws 27, which areprovided with micrometer or gage nuts 28. These parts, being yof, commonconstruction, will be Ireadilyunderstood. The support 24 is preferablyaxially adjustable, it being made up of two adjustably related parts,provided with an adjusting screw A29. As this feature y is'also one ofcommon vconstruction and will be readily understood, we do notillustrate or describe the same in detail herein, as any verticaladjustment of the cutters relative v-to each other will answer thepurpose.

. To enable the operation of the machine to be more rapid and to preventaccidents, such as injury to the work, the work car- 'riage 4 ispreferably provided with a pair j disk or plate of proper size to it thering.

This holderf'is detachably secured as by means of the screws 35, whichare counter ysunk into the platej seas not to interfere l with the clamp36. Then the machine is to be adjusted for cutting rings of differentdia-meters, this work holder is removed, andI a holder of properdiameter to iit the rings to -be cut placed upon the table. As the workholder 84 is atthe forward end of the table, the clamp 36 is preferablyprovided with a supporting block 37 of the same thickness as the' workholder, thus relieving the clamp of strain when it is clampeddown uponthe work. I

The table is cut away at 3S, and the work holder isnotched at 39 toreceive the cutters. y Tie clamp 36 is preferably pneu-v `maticadlyoperated. Te preferably accom# plish this by mounting` the clamp on therod 40iof the piston 4l. The piston cylinder 4Q issupported on, theyyoke-like frame 43, which is carried by the table. guide rod 44 ispreferably provided for the clamp, the rod being'arranged verticallythrough a hole provided therefor in the cylinder 42. The delivery of airto the cylinder 42 is preferably controlled through a valve con `.valves54.

sisting of the valve casing 45, which is connected by the passages 46and 47 to the. ends of the cylinders 42. valve 4S having four spacedheads 49 thereon. The air supply pipe 50 is connected to the casing 45at a central point between the passages 46 and 47, and within the strokeof the central heads. The valve casing is provided with two exhaustports 51, which are always between the end heads and the adjacentcentral or inner heads. The valve 4S is provided with a pair of passages52 opening at the ends thereof and between t-he central pair of heads.At the ends of the valve casing are exhaust ports'53, which arecontrolled by the inwardly-opening By this arrangement, as the valve 48is shifted, the ends of the cylinder 42 are alternately connected to theair sup ply 'pipe 50 and to one of the exhaust ports 5l.

Then it is desired to operate the clamp,

the top valve 54.is opened, which, allowing the air to escape from thatend of the valve through Vthe port 51, varies the pressure on the valveand causes the same to shift upwardly, thereby connecting the passage 46with the air supply and the passage 47 with the exhaust. To release theclamp, the bottom control valve 54 is opened, allowing the air to escapefrom the lower end of the piston casing 45, which varies the pressure onthe valve and causes it to shift downwardly admitting the air to thelower end of the cylinder 42 and thus raising the clamp.

j In preparing for the work, the spindles are adjust-ed so that the lapinthe ring can be cut to the desired width. In operation, the work tablehaving beenadjusted to the diameter of ring to be cut, the work isplaced on the holder and the clamp actuated. The work table is thenshifted against one of the stops 16 and the carriage advanced andretracted. The work table is then shifted against the other stop 16 andthe carriage again advanced and retracted. This completes the operationof splitting the ring and forming the overlapping portions 55 thereof,the angle of the ends 0i the overlaps and of the shoulder portions 56being perfectly cut so that no further work is required. y

The cutters are so adjusted that their inner faces, or the inner edgesof the teeth are in the same plane, sothat the rinfr is sev ered and cutaway to form the overaps and the openingI portions cut on the salneangle by the two operations. then it is desired to cut rings a differentdiameter, the top 0r work holder portion of the table is adjustedthrough the screw 13 so that the work, such asrings of differentdiameters, is properly supported to be swung into proper positionrelative to the cutter. Heretofore, it has been the practice, in themanufacture of these rings, to cut the notches forming the ln the casing45 is a f overlaps on a machine,irst, one'n'otch and of b *so v-anembodiment which we have found prac- Well as broadly Aor friction devicefor the table ears 58 with which the 'ably securedl to said table,

then the ot-her, by separate operationsand then finish by hand, which4skill and considerable time, and Was also very tiring laboron accountof the necessity of frequently collapsing the ring to test the saine.4By` our improved machine, when the same .rings of a given size canbe cutwithout further "adjustment, and the kWork does not lrequire anyparticular skill. To prevent the parts becomin accidentally shifted, Wepreferably provi e a brake consisting of a friction ring 57 arrangeduponthe head of the ivot 9, the ring being split on one side an providedwith laterall projecting set screws 59- engage, so th-at, by adjustingthe same, the ring may be clamped-upon the headl of the pivot to securethe 'desired' friction. 4

As previously stated, our improved milling machine enables the rapidproduction of packing rings, and further the rings may be said to beperfectly formed, so far as the 'joint thereof is concerned.

Our invention has the further advantage eing quite simple and economicalin structural' details. Ve have illustrated our improvements in vticalin use. We are,'hoWeVer', aware that our improvements are capable ofvery great modification in structural details, but. We'

deem it unnecessary to illustrate such modifications in order to fullydisclose our invention, and We wish to be understood as claiming thesame in the form illustrated as within the scope of the appended claims.

Having thus described our invention, What We claim as new and desire tosecure byLetters Patent is: f 4

l. The combination with a cutter, of a reciprocating Work carriage; awork table;I

a pivot on said carriage for said Work table, said Work table comprisinga base, portion arranged on said pivot and a top portion arranged onsaid base portion to be adjusted -thereon 'transversely relative to saidpivot; adjustable stops for limiting the throw of .said table on itssaid pivot; and a Work clamp carried by said top port-ion of said worktable whereby the Work is supported to permit its being presented tosaid cutter in. different positions.

2..The combination with a cutter, of a.

reciprocating Work carriage; a Work table; a cylindrical platelikeWorkholder removhaving slots in one side thereof; a Work clamp;'aIdetachable supporting block therefor, said block being the samethickness as said Work holder; a clamp frame carried by said table;

and@ pneumatic actuating means for said 1 required 3.l The combinationof 1s once adjusted, ,as manyl as desired,-

- 1n a plane at right lright angles to the axisof said which ispivotally clamp plate carried by said frame and connected tosaid platebetween saidfblock and said Work holder.

lower cutter arranged in Adifferent vertical planes,` of awork feedcarriage lmounted to travel in a plane between and at right angles tothe axes of said cutters, a Work table comprising a base portion pivotedon said carriage, the axis of the pivot being at right angles totheplane of travel of the carriage, a top portion arranged on said baseportion to be adjusted toward and from said pivot angles thereto, stopsfor limiting the swing of said Work table on its pivot, and a Work clampcarried by the top portion of said table.

4. They combination of lower cutter arranged in planes, of a Work feedcarriage mounted to. travel in a plane between and at right angles tothe axes of said cutters, a Work table comp rising a base portionpivoted on' said carrlage, the axis of the pivot being at right an upperand a `angles to the plane of travel of the carriage, a Work holder topportion for said table mounted on said base portion to be adjustedthereon in a plane of the said pivot, and adjustable stops for limitingthe-swing of the said Work table on its said pivot, whereby the tablemaybe shifted from one 'stop to the other on succeeding feed movementsof the carriage, to present the Work to said cutters, for the pur'- posespecified.

5. The combination of cut-ter; a Work feed carriage mounted to travel toand from the cutter and in a' plane substantially at cutter; a Worktable comprising a base portion; a pivot on said carriage for said worktable disposed substantially at right angles to the plane of travel ofthe carriage, the base portion of the table being mounted on said pivot;a Work holder portion mounted on said base portion to be adjustedthereon transversely relative to its sald pivot; stops for limiting thethrow-fof said table on its said pivot, said table bfeing freely movablebetween said stops; andfa Work clamp carried by said work holder portionof said Work table whereby the Work table may be shifted from one ofsaid stops to the other on succeeding feeding movements of the carria eto present the Work to the c'utter at di erent angles.

6. The combination of a cutter, a Work .feed carriage mounted to travelto and from the cutter and in a plane substantially at right angles tothe axis of said cut-ter; a Work table comprising two members, one ofmounted on 'said work carriage, to swing in a plane substantiallyparallel to the plane of travel of the carriage, the. other beingadapted to 'support an upper, and a dierent vertical at right angles tothe aXis i the Work and being mounted on the pivotally supported memberto be adjusted thereon transversely relative to its pivot and in a planeparallel to the plane of travel of the Carriage; and stops for limitingthe swing of the table on its pivot', said table being freely movable onits pivot. between such' stops.

In witness `whereof, we have hereunto set our hands and seals in thepresence of two 10 Wl'ltnesses l HnRRY J. Simmer-1min,l LoRELI. N.CURTIS.

